Issue with some of the Switch Port - WS-C2960S-48FPS-L

[sathish.062]

Hi friend, 

I have a issue with some of the switch port in WS-C2960S-48FPS-L. port is not coming UP, connected and checked with laptop directly but ports are not coming up. Please find below required logs (issue with ports 2/0/1 to 2/024). Please help on this.    

IOS Image : c2960s-universalk9-mz.150-2.SE4

Gi2/0/1 down down
Gi2/0/2 down down
Gi2/0/3 down down 
Gi2/0/4 down down
Gi2/0/5 down down 
Gi2/0/6 down down
Gi2/0/7 down down
Gi2/0/8 down down
Gi2/0/9 down down
Gi2/0/10 down down
Gi2/0/11 down down
Gi2/0/12 down down
Gi2/0/13 down down
Gi2/0/14 down down
Gi2/0/15 down down
Gi2/0/16 down down
Gi2/0/17 down down
Gi2/0/18 down down
Gi2/0/19 down down
Gi2/0/20 down down
Gi2/0/21 down down
Gi2/0/22 down down
Gi2/0/23 down down
Gi2/0/24 down down
Gi2/0/25 up up
Gi2/0/26 up up
Gi2/0/27 up up
Gi2/0/28 up up
Gi2/0/29 up up

#sh int gi 2/0/1
GigabitEthernet2/0/1 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is e8ed.f387.d001 (bia e8ed.f387.d001)
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, media type is unknown
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

[Philip D'Ath]

So you are saying you plugged in a known working notebook into Gi2/0/1 and the port did not come up?

Did you try another cable?

If you tried both of these and the port stayed down I would say the switch has a hardware fault.

[sathish.062]

Hi Philip,
Sorry for late response. Yes, ports are not coming up and tried with new cables but no luck. switch 2 has 52 ports but only issue with ports (2/0/1 to 2/024).

[Reza Sharifi]

Hi,

You seem to have a stack of switches since the first number starts with (Gi2/0/1, Gi2/0/2, etc.) So, make sure you are connecting the laptop to the second switch ports on the stack and not any other switch.

HTH

[sathish.062]

Hi Reza,

Sorry for late response and missed to mention switch connected in stack. i tried connecting laptop with switch 2 affected port but port is not coming up and also tried changing the cable as well but no luck.

[Reza Sharifi]

Hi,

So, the uplinks are working but none of the other 24 ports comes up when you connect a laptop to them?

Can you try a different laptop? Also, if that does not help, you may want to upgrade to a different IOS and if that does not help you may have a hardware issue with switch 2.

HTH

[sathish.062]

Reza, thanks for the response. It's a working laptop so no issue with the laptop. I am planning to reload the switch this weekend. If reload didn't work I will follow your suggestion and update you. Thank you so much.

[sathish.062]

Reza, Yes uplinks are working fine. The only issue with first 24 ports and other remaining ports are working fine.

[Deepak Kumar]

HI,

Try to reload the switch if it will not work then book a call with TAC.